The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 22, 2013

Filed:

Apr. 03, 2008
Applicants:

Donald Mueller, Ivanhoe, IL (US);

Weixin Song, Lake Forest, IL (US);

Bangji Cao, Naperville, IL (US);

Inventors:

Donald Mueller, Ivanhoe, IL (US);

Weixin Song, Lake Forest, IL (US);

Bangji Cao, Naperville, IL (US);

Assignee:

USG Interiors, LLC, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 1/10 (2006.01); D04H 1/12 (2006.01); D04H 1/14 (2006.01); D04H 1/54 (2012.01); D02G 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A non-woven material and method of formation thereof is provided to form a substantially flat or planar self supporting core of an inorganic base fiber and an organic binding fiber preferably using an air-laid forming head. In certain preferred embodiments, the organic base fiber has a fiber strength with a break load of about 10 grams or less and an elongation of about 20 percent or less. Preferably, the organic binding fiber has a binding component and a structural component within unitary fiber filaments. In one aspect, the structural component of the organic binding fiber has a composition effective to provide a strength thereof so that the non-woven material can be manually cut with minimal effort. In such form, the non-woven material is suitable to function as an acoustic ceiling tile.


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